In Table REF  we provide the graph statistics for all of the real-world datasets used in Section REF . As you can see, most of the commonly used TU datasets [1]} and OGB-MolHIV [2]} have small graphs. The two large datasets we include (DD and REDDIT-BINARY) have much larger graphs, especially when considering the largest examples. REDDIT-BINARY also has some very high-degree nodes. To an extent, this is also true for the smaller social-graph datasets (IMDB-BINARY and IMDB-MULTI).
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